{"id":"CVE-2022-39243","aliases":["EUVD-2022-6785","GHSA-cxgf-v2p8-7ph7","UBUNTU-CVE-2022-39243"],"status":"published","title":"NuProcess vulnerable to command-line injection through insertion of NUL character(s)","description":"NuProcess is an external process execution implementation for Java. In all the versions of NuProcess where it forks processes by using the JVM's Java_java_lang_UNIXProcess_forkAndExec method (1.2.0+), attackers can use NUL characters in their strings to perform command line injection. Java's ProcessBuilder isn't vulnerable because of a check in ProcessBuilder.start. NuProcess is missing that check. This vulnerability can only be exploited to inject command line arguments on Linux. Version 2.0.5 contains a patch. As a workaround, users of the library can sanitize command strings to remove NUL characters prior to passing them to NuProcess for execution.","severity":{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.0156,"percentile":0.75412,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-77"],"published":"2022-09-26T13:25:11Z","modified":"2026-10-28T02:30:55Z","fixes":[{"ecosystem":"Maven","package":"com.zaxxer:nuprocess","fixed_in":["2.0.5"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"com.zaxxer:nuprocess","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.2.0"},{"fixed":"2.0.5"}]}]},{"source":"osv","ecosystem":"Maven","package":"com.zaxxer:nuprocess","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.2.0"},{"fixed":"2.0.5"}]}],"versions":["1.2.0","1.2.1","1.2.2","1.2.3","1.2.4","1.2.5","1.2.6","2.0.0","2.0.1","2.0.2","2.0.3","2.0.4"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"watchman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.9.0-2","4.9.0-3","4.9.0-3build1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"watchman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.9.0-5build1","4.9.0-5build2","4.9.0-6","4.9.0-6build1","4.9.0-6build2"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"watchman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.9.0-7build1","4.9.0-7build2","4.9.0-7build3","4.9.0-7build4"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"watchman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.9.0-8build1","4.9.0-9"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"watchman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.9.0-9build3","4.9.0-9build4"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"watchman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.9.0-9","4.9.0-9build1","4.9.0-9build2","4.9.0-9build3"]}],"products":[{"vendor":"brettwooldridge","product":"nuprocess"},{"vendor":"nuprocess_project","product":"nuprocess"}],"references":[{"url":"https://github.com/brettwooldridge/NuProcess/security/advisories/GHSA-cxgf-v2p8-7ph7","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory","web","report"]},{"url":"https://github.com/brettwooldridge/NuProcess/pull/143","tags":["x_refsource_MISC","x_transferred","Exploit","Patch","Third Party Advisory","fix","web","report"]},{"url":"https://github.com/brettwooldridge/NuProcess/commit/29bc09de561bf00ff9bf77123756363a9709f868","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-39243","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-cxgf-v2p8-7ph7"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/39xxx/CVE-2022-39243.json","tags":["advisory"]},{"url":"https://github.com/brettwooldridge/NuProcess","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2022-39243","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-39243","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2022-39243","title":"NuProcess vulnerable to command-line injection through insertion of NUL character(s)","description":"NuProcess is an external process execution implementation for Java. In all the versions of NuProcess where it forks processes by using the JVM's Java_java_lang_UNIXProcess_forkAndExec method (1.2.0+), attackers can use NUL characters in their strings to perform command line injection. Java's ProcessBuilder isn't vulnerable because of a check in ProcessBuilder.start. NuProcess is missing that check. This vulnerability can only be exploited to inject command line arguments on Linux. Version 2.0.5 contains a patch. As a workaround, users of the library can sanitize command strings to remove NUL characters prior to passing them to NuProcess for execution.","status":"published","published":"2022-09-26T13:25:11Z","modified":"2025-04-22T17:20:18.073Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T14:34:39.559326Z"}],"euvd":[{"id":"EUVD-2022-6785","description":"NuProcess is an external process execution implementation for Java. In all the versions of NuProcess where it forks processes by using the JVM's Java_java_lang_UNIXProcess_forkAndExec method (1.2.0+), attackers can use NUL characters in their strings to perform command line injection. Java's ProcessBuilder isn't vulnerable because of a check in ProcessBuilder.start. NuProcess is missing that check. This vulnerability can only be exploited to inject command line arguments on Linux. Version 2.0.5 contains a patch. As a workaround, users of the library can sanitize command strings to remove NUL characters prior to passing them to NuProcess for execution.","status":"published","published":"2022-09-26T13:25:11Z","modified":"2025-04-22T17:20:18Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T20:52:16.055056Z"}],"ghsa":[{"id":"GHSA-cxgf-v2p8-7ph7","title":"NuProcess vulnerable to command-line injection through insertion of NUL character(s)","description":"### Impact\nIn all the versions of NuProcess where it forks processes by using the JVM's Java_java_lang_UNIXProcess_forkAndExec method (1.2.0+), attackers can use NUL characters in their strings to perform command line injection. Java's ProcessBuilder isn't vulnerable because of a check in ProcessBuilder.start. NuProcess is missing that check.\n\nThis vulnerability can only be exploited to inject command line arguments on Linux.\n- On macOS, any argument with a NUL character is truncated at that character. This means the malicious arguments are never seen by the started process.\n- On Windows, the entire command line is truncated at the first NUL character. This means the malicious arguments, and any intentional arguments provided after them, are never seen by the started process.\n\n### Patches\n2.0.5\n\n### Workarounds\nUsers of the library can sanitize command strings to remove NUL characters prior to passing them to NuProcess for execution.\n\n### References\nNone.\n","status":"published","published":"2022-09-30T04:29:11Z","modified":"2023-01-29T05:05:58Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T14:36:25.835323Z"}],"nvd":[{"id":"CVE-2022-39243","description":"NuProcess is an external process execution implementation for Java. In all the versions of NuProcess where it forks processes by using the JVM's Java_java_lang_UNIXProcess_forkAndExec method (1.2.0+), attackers can use NUL characters in their strings to perform command line injection. Java's ProcessBuilder isn't vulnerable because of a check in ProcessBuilder.start. NuProcess is missing that check. This vulnerability can only be exploited to inject command line arguments on Linux. Version 2.0.5 contains a patch. As a workaround, users of the library can sanitize command strings to remove NUL characters prior to passing them to NuProcess for execution.","status":"published","published":"2022-09-26T14:15:10.407Z","modified":"2026-06-17T04:57:59.053Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T14:07:28.501364Z"}],"osv":[{"id":"CVE-2022-39243","title":"NuProcess vulnerable to command-line injection through insertion of NUL character(s)","description":"NuProcess is an external process execution implementation for Java. In all the versions of NuProcess where it forks processes by using the JVM's Java_java_lang_UNIXProcess_forkAndExec method (1.2.0+), attackers can use NUL characters in their strings to perform command line injection. Java's ProcessBuilder isn't vulnerable because of a check in ProcessBuilder.start. NuProcess is missing that check. This vulnerability can only be exploited to inject command line arguments on Linux. Version 2.0.5 contains a patch. As a workaround, users of the library can sanitize command strings to remove NUL characters prior to passing them to NuProcess for execution.","status":"published","published":"2022-09-26T13:25:11Z","modified":"2026-10-28T02:30:55.76584372Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T15:44:26.53798Z"},{"id":"GHSA-cxgf-v2p8-7ph7","title":"NuProcess vulnerable to command-line injection through insertion of NUL character(s)","description":"### Impact\nIn all the versions of NuProcess where it forks processes by using the JVM's Java_java_lang_UNIXProcess_forkAndExec method (1.2.0+), attackers can use NUL characters in their strings to perform command line injection. Java's ProcessBuilder isn't vulnerable because of a check in ProcessBuilder.start. NuProcess is missing that check.\n\nThis vulnerability can only be exploited to inject command line arguments on Linux.\n- On macOS, any argument with a NUL character is truncated at that character. This means the malicious arguments are never seen by the started process.\n- On Windows, the entire command line is truncated at the first NUL character. This means the malicious arguments, and any intentional arguments provided after them, are never seen by the started process.\n\n### Patches\n2.0.5\n\n### Workarounds\nUsers of the library can sanitize command strings to remove NUL characters prior to passing them to NuProcess for execution.\n\n### References\nNone.\n","status":"published","published":"2022-09-30T04:29:11Z","modified":"2023-11-08T04:10:16.389553Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T15:46:45.639885Z"},{"id":"UBUNTU-CVE-2022-39243","description":"NuProcess is an external process execution implementation for Java. In all the versions of NuProcess where it forks processes by using the JVM's Java_java_lang_UNIXProcess_forkAndExec method (1.2.0+), attackers can use NUL characters in their strings to perform command line injection. Java's ProcessBuilder isn't vulnerable because of a check in ProcessBuilder.start. NuProcess is missing that check. This vulnerability can only be exploited to inject command line arguments on Linux. Version 2.0.5 contains a patch. As a workaround, users of the library can sanitize command strings to remove NUL characters prior to passing them to NuProcess for execution.","status":"published","published":"2022-09-26T14:15:00Z","modified":"2026-10-17T12:57:15.17256116Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T16:53:55.502114Z"}]}}